The specified GTA length must already be defined for the specified translation type.
Recovery
Display all of the GTA lengths for the translation type. Enter the rtrv-tt command.
The lengths are displayed in the NDGT column.
Re-enter the chg/dlt/rtrv-gtt command that generated this error message, specifying an existing GTA length. Refer to the command description in Commands User's Guide and to the Database Administration - GTT User's Guide for assistance.